INTRODUCTION

Microsoft has released security bulletin MS11-039. To view the complete security bulletin, visit one of the following Microsoft websites:

How to obtain help and support for this security update

Help installing updates: Support for Microsoft UpdateSecurity solutions for IT professionals: TechNet Security Troubleshooting and SupportHelp protect your computer that is running Windows from viruses and malware:Virus Solution and Security CenterLocal support according to your country: International Support

More Information

Download information

The following file is available for download from the Microsoft Download Center:DownloadDownload the package now. For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:

119591 How to obtain Microsoft support files from online services Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

Known issues and additional information about this security update

For more information about installation issues with the Microsoft .NET Framework 3.5.1, click the following article number to view the article in the Microsoft Knowledge Base:

2263996 Patching of Microsoft Framework can fail with Access is denied or File in Use error

Command-line switches for this update

For more information about the various command-line switches that are supported by this update, click the following article number to view the article in the Microsoft Knowledge Base:

934307 Description of the Windows Update Stand-alone Installer (Wusa.exe) and of .msu files in Windows Vista, Windows 7, Windows Server 2008, and in Windows Server 2008 R2

Restart requirement

This update does not require a system restart after you apply it unless the files that are being updated are locked or in use.

Update removal information

To remove this update, use the Add or Remove Programs item in Control Panel.

Update replacement information

This security update does not replace a previously released security update.

FILE INFORMATION

The English (United States) version of this security update has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

For all supported x86-based versions of Windows 7

GDR Service Branch

File name

File version

File size

Date

Time

System.dll

2.0.50727.4957

3,178,496

19-Jan-2011

23:32

LDR Service Branch

File name

File version

File size

Date

Time

System.dll

2.0.50727.5071

3,190,784

19-Jan-2011

23:30

For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2

GDR Service Branch

File name

File version

File size

Date

Time

System.dll

2.0.50727.4957

3,178,496

20-Jan-2011

00:42

System.dll

2.0.50727.4957

3,178,496

19-Jan-2011

23:32

LDR Service Branch

File name

File version

File size

Date

Time

System.dll

2.0.50727.5071

3,190,784

20-Jan-2011

00:46

System.dll

2.0.50727.5071

3,190,784

19-Jan-2011

23:30

For all supported IA-64-based versions of Windows Server 2008 R2

GDR Service Branch

File name

File version

File size

Date

Time

System.dll

2.0.50727.4957

3,178,496

20-Jan-2011

00:36

System.dll

2.0.50727.4957

3,178,496

19-Jan-2011

23:32

LDR Service Branch

File name

File version

File size

Date

Time

System.dll

2.0.50727.5071

3,190,784

20-Jan-2011

01:01

System.dll

2.0.50727.5071

3,190,784

19-Jan-2011

23:30

Need more help?

Want more options?

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.